The benefits of brushless motor controller without brush

The advantages of the brushless motor controller do you understand? Below small make up take you to understand it. 1. Because in addition to the brushless motor controller brush, so the operation will not run like a brush motor controller in edm, thereby reducing the electric spark interference of remote radio equipment. 2. Because there is no brush, so the operation of the friction force is small, can guarantee the smooth operation and low noise. 3. Is mainly due to brushless motor controller of wear on the bearing, and have no brush, can make it only need to do some cleaning maintenance maintenance, reduce maintenance costs. Is brushless motor controller has the advantages of the above, you know?